The Kubota RB40170040 is a genuine OEM O-ring designed for critical sealing applications in a wide range of Kubota agricultural and construction machinery. This high-quality sealing component ensures a tight, leak-free seal, preventing fluid loss and contamination. With an inner diameter of 40 mm, an outer diameter of 48 mm, and a thickness of 4 mm, it is engineered to precise specifications for optimal performance and durability. It fits numerous Kubota models including L-series, M-series, MX-series tractors, SVL compact track loaders, KX and U-series excavators, RTV-X utility vehicles, and R-series wheel loaders.